TM-9-2320-279-20-3

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 3 OF 3

TM-9-2320-279-20-3 - Page 384 of 615

TM 9-2320-279-20-3

M978 Tanker Maintenance Instructions (Cont)

25-18. V4 RELIEF VALVE REMOVAL/INSTALLATION/ADJUSTMENT (CONT).

b.

●

●

(1)

(2)

(3)

(4)

(5)

(6)

Install two coupling halves (4) over coupling gasket (1) with two screws (5) and nuts (6).

25-88

Installation.

CAUTION

Do not tear or otherwise damage

coupling gaskets during installation.

If coupling gaskets are damaged,

piping connections will leak.

Do not pinch or pull coupling

gaskets off-center while installing

coupling halves. If coupling gaskets

are damaged or moved out of

position, piping connections will

leak.

Install coupling gasket (1) on

pipe (2).

Position V4 relief valve (3) on

pipe (2) and install coupling

gasket (1) over end of valve.

Install coupling gasket (7) on pipe (8).

Position V4 relief valve (3) on pipe (8)

and install coupling gasket (7) over end

of valve.

Install two coupling halves (9) over

coupling gasket (7) with two screws (10)

and nuts (11).